curl 跨域取数据

---恢复内容开始---

class Curl{

protected $c;

public function __construct(){

$this->c = curl_init();

curl_setopt($this->c,CURLOPT_RETURNTRANSFER,1);

//1表示获取返回的内容;0则输出返回的内容

curl_setopt($this->c,CURLOPT_HEADER,0);

//0表示不输出头文件,非0则输出头文件

}

public function getDate($url){

curl_setopt($this->c,CURLOPT_URL,$url);

return $res = curl_exec($this->c);

}

// public function get

public function postData($url,$data){ //data=['mod'=>'product','col_key'=>'product']

$data = $this->createUrlData($data);

curl_setopt($this->c,CURLOPT_HTTPHEADER,array('Expect'));

//防止417错误,传递的字符串大于1024字节

curl_setopt($this->c,CURLOPT_URL,$url);

curl_setopt($this->c,CURLOPT_POST,1);

//设置请求类型为post

curl_setopt($this->c,CURLOPT_POSTFIELDS,$data);

//添加post数据到请求中

return curl_exec($this->c);

}

public function createUrlData($arr){ //得到mod=product&col_key=product

$str = '';

if(!empty($arr)){

foreach($arr as $key=>$value){

$str.= $key.'='.$value.'&';

}

$str = substr($str,0,-1);

}

return $str;

}

public function __destruct(){

curl_close($this->c);

}

}

---恢复内容结束---